Explain what is the critical value of t

Reference no: EM13558667

A new method for the determination of mercury in oyster tissue is compared with NIST SRM 1566B (Oyster tissue). The NIST standard is said to contain 0.0371 mg/kg mercury in oyster tissue. Five replicates through the new method gave a mercury content of 42 ppb with a standard deviation of 2 ppb.

Perform a t-test at the 95% confidence level to determine if the new method contains bias.

a) What is the calculated value of t for the new method (to two sig. figs)?

b) What is the critical value of t (to two sig. figs)?

Reference no: EM13558667

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